Lauralee E. Martin - 10 Jun 2025 Form 4 Insider Report for KAISER ALUMINUM CORP (KALU)

Reporting relationship: Director
Issuer ticker: KALU
Reported as of: 10 Jun 2025
Net transaction value: +$119,495
SEC form: 4
Accepted by SEC: 12 Jun 2025, 16:30:06 UTC
Prior SEC filing: 05 May 2025
Next SEC filing: 04 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Cherrie I. Tsai, with power of attorney for Lauralee E. Martin

Key filing fact

Lauralee E. Martin filed Form 4 for KAISER ALUMINUM CORP (KALU) on 12 Jun 2025.

Key facts

This page summarizes Lauralee E. Martin's Form 4 filing for KAISER ALUMINUM CORP (KALU).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 12 Jun 2025, 16:30.

Change

Previous filing in this sequence was filed on 05 May 2025.
Current net transaction value: +$119,495.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001164495 Primary reporting owner

MARTIN LAURALEE

Relationship: Director
Address: 1550 WEST MCEWEN DRIVE, SUITE 500, FRANKLIN
Signature: /s/ Cherrie I. Tsai, with power of attorney for Lauralee E. Martin
Signature date: 12 Jun 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

KALU transaction

Common Stock, par value $0.01 per share

Award

Transaction value: $0
Shares: +1,905
Change %: +40%
Price: $0.000000
Shares after: 6,719
Date: 10 Jun 2025
Ownership: Direct
Footnotes: F1

KALU transaction

Common Stock, par value $0.01 per share

Award

Transaction value: $119,495
Shares: +1,626
Change %: +24%
Price: $73.49
Shares after: 8,345
Date: 10 Jun 2025
Ownership: Direct
Footnotes: F2, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Grant to the reporting person of restricted stock under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated. All restrictions will lapse on June 10, 2026.

Footnote F2

Stock received by the reporting person under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated, at such person's election in lieu of all or a portion of the reporting person's annual cash retainer for serving as a member of the Board of Directors of Kaiser Aluminum Corporation and chair or a member of one or more committees of the Board of Directors.

Footnote F3

Equal to the average closing price of the Issuer's common stock as reported by the Nasdaq Stock Market, LLC for the twenty trading days prior to June 10, 2025.